Suppose I want to define a series of keybindings with the same structure, like `a, `b, `cand so on. Is it possible to define a variable and use it in my binding definitionsinstead of using a backtick explicitly? so that, if at a second time I decide tochange to a different character, I am not forced to change all my definitions.

Is this possible? and is this advisable or performance issues might arise?